Aweber cookie script

Hi Coders, This project is EASY for those that are familiar with the autorsponder service Aweber and Internet Cookies. What I want is the following: When a visitor browse my site he can signup for my newsletter. There will be a box on my site? with (in this case) "First name" and "e-mail address". When they fill out their first name I want that name to be registered in a database (or something like that)? connected to the cookie that needs to be set on the visitors computer. So next time the visitor come to my site I can use that cookie to Display the visitors name instead of "Hello stranger!" Also the e-mail address must be set as a variable (if I want to) Aweber have more then just these 2 inputs so it must be very easy to implement new variables. If you have a better idea how to do this please send me a message. Thanks guys! Dennis